Alex Kennedy's signature Eclat AK Guard sprocket features a CNC'd 6061-T6 aluminum sprocket with a full bolt-on nylon/fiberglass guard designed to protect the chain and sprocket teeth from grind damage. The nylon/fiberglass blend material used on the guard was made to reduce friction and allows the guard to slide through ledges and rails without catching or slowing you down. Extra sprocket guards available separately. Includes 19mm and 22mm adapters.